Copyright  First published 2014 in Great Britain & the United States by ISTE and John Wiley & Sons All Rights Reserved. This translation published under license. Authorized translation from the English language edition Published by John Wiley & Sons. Responsibility for the accuracy of the translation rests solely with Tsinghua University Press Limited and is not the responsibility of John Wiley & Sons. No part of this book may be reproduced in any form without the written permission of the original copyrights holder.

无线电力传输技术的成熟度和应用广泛度仍无法与无线通信技术相比。近来，随着人类社会信息化的不断发展，人们渴望切断电子设备的“最后一根线”——电力线，从而获得最大的使用灵活度，因此无线电力传输技术再次得到人们的重视，进行了大量有益的实验和探索。